著者
東中 竜一郎 杉山 弘晃 成松 宏美 磯崎 秀樹 菊井 玄一郎 堂坂 浩二 平 博順 喜多 智也 南 泰浩 風間 健流 大和 淳司
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会全国大会論文集 第32回全国大会(2018)
巻号頁・発行日
pp.2C102, 2018 (Released:2018-07-30)

「ロボットは東大に入れるか」プロジェクトの英語における意見要旨把握問題の解法について述べる. 具体的には,RACEと呼ばれる大規模な英語問題のデータセットを用いた 深層学習の手法により,Word2vecの類似度に基づく手法よりも高精度に意見要旨把握問題が解けることを示す. 今回,30%の正解率を44%まで改善することができた.
著者
西 朋里 小川 祐樹 高 史明 高野 雅典 森下 壮一郎 服部 宏充
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.36, no.1, pp.WI2-E_1-9, 2021-01-01 (Released:2021-01-01)
参考文献数
21

With the rise of Internet TV and other new media, people are now viewing the news through a variety of conduits. In addition, the influence of news media on people is changing. Viewers can post comments in Internet TV, and these comments has the viewers’ opinions of the news contents. Therefore, analysis of viewers comments is important in revealing the effect of the news. In addition, these comments are posted based on the morality of the viewers, and point of view of morality is considered important in the analysis of viewer comments in news. Therefore, this study purpose is to clarify the opinion on Internet TV news programs from a moral-based analysis viewers’ comments. This study analyzed the trend of viewer comments on ABEMA news programs using comment length and the application of two methods. First, the morality of viewer comments was analyzed by calculating the moral/immoral expression rate for each program using the moral foundation dictionary. Second, the distributed expressions of viewer comments (calculated by Doc2Vec) were clustered by k-means++, and program trends were analyzed using the cluster characteristics. The results indicated that there was no difference in comment length between the two program types. Comments on soft-news programs had a high moral/immoral expression rate for politics or current events. In contrast, comments of hard-news programs did not show a characteristic trend. A viewer can easily participate in the discussion, because the soft-news program deals with the same news for a long time as the news content is limited compared to the non-discussion program.
著者
田中 恒彦 岡嶋 美代 小松 孝徳
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.30, no.1, pp.282-290, 2015-01-06 (Released:2015-01-06)
参考文献数
26

We suggest as an important tool in psychotherapy the use of onomatopoeia. Mood disorder and Anxiety disorder are among the most prevalent mental disorders, and Behavior therapy (BT) is an evidence-based psychological treatment suitable for these cases. Interoceptive sensation is important in BT, because it serves as a barometer for responses. On the other hand, standard assessment methods such as subjects unit of disturbance scale (SUDs) is not optimal. In a different approach, we feel a certain form of it, e.g. Doki-Doki, at the same time when feeling emotion. However, the SUDs is assessed without taking somesthesis into consideration. In addition, BT requires information on somesthesis in order to optimally perform the therapy. Here we propose a solution to this problem, based on using onomatopoeia for SUDs. It can assess appropriately the interoceptive sensations by which a patient is accompanied in anxiety. We report two clinical cases using onomatopoeia for SUDs. This makes for an improved therapy. The internal sense appears during the course of the disease. A treatment is thus provided which is not tied to a diagnosis name, but rather by emphasizing the ``internal sense,'' which is more effective in producing an improvement towards curing.
著者
高野 雅典 和田 計也 福田 一郎
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
pp.30-6_JWEIN-D, (Released:2016-01-28)
参考文献数
30
被引用文献数
3

Cooperative behaviors are common in humans and are fundamental to our society. Theoretical and experimental studies have modeled environments in which the behaviors of humans, or agents, have been restricted to analyze their social behavior. However, it is important that such studies are generalized to less restrictive environments to understand human society. Social network games (SNGs) provide a particularly powerful tool for the quantitative study of human behavior. In SNGs, numerous players can behave more freely than in the environments used in previous studies; moreover, their relationships include apparent conflicts of interest and every action can be recorded. We focused on reciprocal altruism, one of the mechanisms that generate cooperative behavior. This study aims to investigate cooperative behavior based on reciprocal altruism in a less restrictive environment. For this purpose, we analyzed the social behavior underlying such cooperative behavior in an SNG. We focused on a game scenario in which the relationship between the players was similar to that in the Leader game. We defined cooperative behaviors by constructing a payoff matrix in the scenario. The results showed that players maintained cooperative behavior based on reciprocal altruism, and cooperators received more advantages than noncooperators. We found that players constructed reciprocal relationships based on two types of interactions, cooperative behavior and unproductive communication.
著者
鈴木 莉子 吉川 将司 谷中 瞳 峯島 宏次 戸次 大介
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会全国大会論文集 第33回全国大会(2019)
巻号頁・発行日
pp.2L1J903, 2019 (Released:2019-06-01)

近年、モダリティの異なるデータ間での推論によって新たな知識を獲得するマルチモーダル推論に関する研究が盛んになっている。画像情報を自然言語の意味表現と接続可能な形式で表すことができれば、自然言語テキスト間の推論と同様の高度な推論を、テキストデータと画像情報の間で行うことができる。本論文では、画像情報とキャプションを一階述語論理 (FOL)のモデルと論理式を用いて表現することで、画像から数量表現や否定を含む複雑な文を推論するシステムを提案する。画像情報とキャプションにより拡張されたFOLモデルを用いることで、意味的に複雑な文に加え、物体の状態を表す関係を含む文も推論できるようになった。
著者
田中 佑典 戸田 浩之 湯口 昌宏
出版者
一般社団法人 人工知能学会
雑誌
JSAI大会論文集
巻号頁・発行日
vol.2017, pp.1L13, 2018-07-30

<p>サッカーやバスケットボールなどのチームスポーツにおいて,試合中の選手のプレイ履歴(プレイログ,位置情報など)が大規模に取得可能となってきている.チームスポーツにおいて試合を有利に進めるためには,数的優位な状況をつくることが重要である.本研究では,実際のサッカーデータに基づいて,数的優位な状況をチームがどのようにして作り出すことができるのかについて分析し,それを作り出す過程について考察する.</p>

18 0 0 0 OA 転移学習

著者
神嶌 敏弘
出版者
一般社団法人 人工知能学会
雑誌
人工知能 (ISSN:21882266)
巻号頁・発行日
vol.25, no.4, pp.572-580, 2010-07-01 (Released:2020-09-29)
著者
水上 雅博 杉山 弘晃 有本 庸浩 東中 竜一郎 光田 航 小林 哲生
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.38, no.3, pp.B-MA2_1-14, 2023-05-01 (Released:2023-05-01)
参考文献数
18
被引用文献数
2

Local governments have high expectations for dialogue systems that provide residents and visitors with dialogue on multiple tasks, such as tourist information, town office information, and daily life information. In addition, there is also an expectation for such dialogue systems to be given the personalities of characters possessed by local governments and to provide chat dialogues for residents. However, to give the personality of a character to the dialogue system, task dialogue data and dialogue manager that reflect the personality are essential. Based on the study of role play-based question-answering dialogue systems that reproduce characters, we propose a method for collecting dialogue data that enables task dialogue and a method of dialogue manager and response selection that facilitates task dialogue. We constructed a dialogue system that imitated a certain local government character using the proposed method and evaluated its effectiveness through a laboratory experiment and demonstration experiment. The results showed that our dialogue system had statistically better performance in both task-oriented dialogue and chat oriented one.
著者
松本 慎平 川口 大貴 鳥海 不二夫
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.30, no.1, pp.393-402, 2015-01-01 (Released:2015-01-15)
参考文献数
31

At the time of the Great East Japan Earthquake, many Tweets of the disaster had been posted and Twitter had been effectively-utilized as an infrastructure for sharing disaster information and confirming safety. However in Twitter, there have been various kinds of information and also the volume is extremely huge, so a technology to effectively obtain the information on disaster or to filter users depending on their purpose of use are considered essential in order for Twitter to be effective at the time of disaster. Especially some kind of filtering mechanism to easily catch real humans' voices is assumed to be important for getting better performance out of Twitter at the time of disaster. The aim of this study is to numerically-express the characteristics of Twitter users by using the concept of entropy in response to each user's tweeting, replying, and retweeting activities, which are assumed to be the source of Twitter's real time feature, to show the details of Twitter users activities at the time of disaster, and to verify the possibility of this method for automatic user filtering. The real Twitter data distributed around the time of the earthquake is used to analyze, and especially in this paper, the difference of user attributes mainly between bot, cyborg and human is examined by using this data. From the experimental results, the characteristics of Twitter users were clarified with multidimensional quantitative values. The experimental results also showed the possibility for automatic user filtering.
著者
青柳 志織 川合 康央
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会全国大会論文集 第33回 (2019)
巻号頁・発行日
pp.2E4OS901, 2019 (Released:2019-06-01)

インターネットコミュニケーションは情報化社会において日々進化している.これらのコミュニケーションの中で,「ネットスラング」と呼ばれるインターネット独自の俗語がしばしば使用されている.本研究では「(笑)」や「w」等,4種類の笑いを表現するネットスラングに着目し,それらの意味用法が同じかどうかを明らかにすることを目的とした.笑いを表現するネットスラングを比較することによって,笑いの種類と笑いの対象が各スラングで異なる傾向があることがわかった.
著者
廣中 詩織 吉田 光男 岡部 正幸 梅村 恭司
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会論文誌 (ISSN:13460714)
巻号頁・発行日
vol.32, no.1, pp.WII-M_1-11, 2017-01-06 (Released:2017-01-20)
参考文献数
24

The home locations of Twitter users can be estimated using a social network, which is generated by various relationships between users. There are many network-based location estimation methods with user relationships. However, the estimation accuracy of various methods and relationships is unclear. In this study, we estimate the users’home locations using four network-based location estimation methods on four types of social networks in Japan. We have obtained two results. (1) In the location estimation methods, the method that selects the most frequent location among the friends of the user shows the highest precision and recall. (2) In the four types of social networks, the relationship of follower has the highest precision and recall.
著者
是枝 祐太 森下 皓文 今一 修 十河 泰弘
出版者
一般社団法人 人工知能学会
雑誌
人工知能学会全国大会論文集 第37回 (2023) (ISSN:27587347)
巻号頁・発行日
pp.4Xin108, 2023 (Released:2023-07-10)

プログラムコードの再利用はソフトウェア開発における基本的な生産性向上方法であるが,コードレポジトリの説明文 (readme) は整備コストが高く,しばしばreadmeが整備されないことがコードの再利用を妨げている.近年報告された研究は関数・クラスなど数十行のコードに具体性の高いコメントを付与するが, readmeの生成においては数万から数百万行のコードを抽象的に要約して生成を行う必要があるため,コメント生成技術をreadme生成の問題にそのまま適用することはできない.本研究では,レポジトリが実施することの概要を示す代表的なコード断片 (代表コード) をヒューリスティクスと弱教師付き学習により抽出することで,大規模言語モデルでreadmeを生成できることを示した.主観評価と自動評価により,提案手法の有効性を確認した.